﻿using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Configuration.Json;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;

namespace EU.Core.Common.Helper;

/// <summary>
/// Json 配置文件通用类
/// </summary>
public static class JsonConfigUtils
{
    #region 变量

    /// <summary>
    /// 锁
    /// </summary>
    private static object __Lock__ = new object();

    #endregion

    /// <summary>
    /// 读取配置文件的信息
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="fileName">要读取json的名称</param>
    /// <param name="key">要读取的json节点名称</param>
    /// <returns></returns>
    public static T GetAppSettings<T>(IConfiguration config, string AppSettingsFileName, string key) where T : class, new()
    {
        lock (__Lock__)
        {
            if (config == null)
            {
                config = new ConfigurationBuilder()
                    .Add(new JsonConfigurationSource
                    {
                        Path = AppSettingsFileName,
                        Optional = false,
                        ReloadOnChange = true
                    })
                    .Build();
            }
            var appconfig = new ServiceCollection()
                .AddOptions()
                .Configure<T>(config.GetSection(key))
                .BuildServiceProvider()
                .GetService<IOptions<T>>()
                .Value;

            return appconfig;
        }
    }


    public static string GetJson(string jsonPath, string key)
    {
        IConfiguration config = new ConfigurationBuilder().AddJsonFile(jsonPath).Build(); //json文件地址
        string s = config.GetSection(key).Value; //json某个对象
        return s;
    }
}

#region Nacos 配置清单
public class JsonConfigSettings
{
    // 从nacos 读取到的系统配置信息
    public static IConfiguration Configuration { get; set; }


    /// <summary>
    /// 配置文件名称常量
    /// </summary>
    private static string AppSettingsFileName = $"appsettings{ GetAppSettingsConfigName() }json";

    /// <summary>
    /// 根据环境变量定向配置文件名称
    /// </summary>
    /// <returns></returns>
    private static string GetAppSettingsConfigName()
    {
        if (Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") != null
                  && Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") != "")
        {
            return $".{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT")}.";
        }
        else
        {
            return ".";
        }
    }
    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static List<string> NacosServerAddresses
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").ServerAddresses;
        }
    }

    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static int NacosDefaultTimeOut
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").DefaultTimeOut;
        }
    }

    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static string NacosNamespace
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").Namespace;
        }
    }
    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static string NacosServiceName
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").ServiceName;
        }
    }

    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static int ListenInterval
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").ListenInterval;
        }
    }

    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static string NacosIp
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").Ip;

        }
    }
    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static int NacosPort
    {
        get
        {
            return int.Parse(JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").Port);
        }
    }
    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static bool NacosRegisterEnabled
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").RegisterEnabled;
        }
    }

    /// <summary>
    /// 获取Nacos配置
    /// </summary>
    public static Dictionary<string, string> NacosMetadata
    {
        get
        {
            return JsonConfigUtils.GetAppSettings<NacosConfigDTO>(Configuration, AppSettingsFileName, "nacos").Metadata;
        }
    }

    #endregion

    #region Nacos配置

    /// <summary>
    /// Nacos配置实体
    /// </summary>
    public class NacosConfigDTO
    {
        /// <summary>
        /// 服务IP地址
        /// </summary>
        public List<string> ServerAddresses { get; set; }
        /// <summary>
        /// 默认超时时间
        /// </summary>
        public int DefaultTimeOut { get; set; }
        /// <summary>
        /// 监听间隔
        /// </summary>
        public int ListenInterval { get; set; }
        /// <summary>
        /// 服务命名空间
        /// </summary>
        public string Namespace { get; set; }
        /// <summary>
        /// 服务名称
        /// </summary>
        public string ServiceName { get; set; }
        /// <summary>
        /// IP地址
        /// </summary>
        public string Ip { get; set; }
        /// <summary>
        /// 端口
        /// </summary>
        public string Port { get; set; }
        /// <summary>
        /// 服务命名空间
        /// </summary>
        public bool RegisterEnabled { get; set; }
        /// <summary>
        /// 其他配置
        /// </summary>
        public Dictionary<string, string> Metadata { get; set; }
    }

    #endregion

}
